// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_PUBLIC_BROWSER_PROFILER_SUBSCRIBER_H_
#define CONTENT_PUBLIC_BROWSER_PROFILER_SUBSCRIBER_H_

#include "content/common/content_export.h"
#include "content/public/common/process_type.h"

namespace tracked_objects {
struct ProcessDataSnapshot;
}

namespace content {

// Objects interested in receiving profiler data derive from ProfilerSubscriber.
class CONTENT_EXPORT ProfilerSubscriber {
public:
    // Send number of pending processes to subscriber. |end| is set to true if it
    // is the last time. This is called on the UI thread.
    virtual void OnPendingProcesses(int sequence_number,
        int pending_processes,
        bool end)
        = 0;

    // Send |profiler_data| back to subscriber.
    // This is called on the UI thread.
    virtual void OnProfilerDataCollected(
        int sequence_number,
        const tracked_objects::ProcessDataSnapshot& profiler_data,
        content::ProcessType process_type)
        = 0;

protected:
    virtual ~ProfilerSubscriber() { }
};

} // namespace content

#endif // CONTENT_PUBLIC_BROWSER_PROFILER_SUBSCRIBER_H_
